Fixed #16280. Document that both args and kwargs cannot be passed to reverse at the same time.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16780 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/topics/http/urls.txt

@@ -808,6 +808,8 @@ This ``current_app`` argument is used as a hint to resolve application
 namespaces into URLs on specific application instances, according to the
 :ref:`namespaced URL resolution strategy <topics-http-reversing-url-namespaces>`.
 
+``args`` and ``kwargs`` cannot be passed to ``reverse()`` at the same time.
+
 .. admonition:: Make sure your views are all correct.
 
     As part of working out which URL names map to which patterns, the